A.質子數(shù)為偶數(shù),質量數(shù)為奇數(shù) B.質子數(shù)為奇數(shù),質量數(shù)為奇數(shù) C.質子數(shù)為奇數(shù),質量數(shù)為偶數(shù) D.質子數(shù)為偶數(shù),質量數(shù)為偶數(shù)